Eritrea's telecommunication infrastructure is still developing, with mobile phone usage gradually increasing. As of recent estimates, there are around 3.7 million mobile phone users in the country, reflecting a growing reliance on mobile communication. Internet penetration remains low, with only about 1.3% of the population having access to the internet. This limited access is mainly due to the country’s controlled network environment and lack of widespread infrastructure. USSD (Unstructured Supplementary Service Data) services have gained some popularity, particularly for basic mobile transactions and services. Popular USSD codes in Eritrea include *123# for checking mobile balances and *124# for data bundle purchases. In terms of marketing, WhatsApp and SMS are not as widely used for business purposes due to limited internet penetration. Businesses that do use SMS marketing are typically local enterprises that cater to urban populations, where mobile usage is more concentrated.